﻿//
// MessagePartTests.cs
//
// Author: Jeffrey Stedfast <jestedfa@microsoft.com>
//
// Copyright (c) 2013-2025 .NET Foundation and Contributors
//
// Permission is hereby granted, free of charge, to any person obtaining a copy
// of this software and associated documentation files (the "Software"), to deal
// in the Software without restriction, including without limitation the rights
// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
// copies of the Software, and to permit persons to whom the Software is
// furnished to do so, subject to the following conditions:
//
// The above copyright notice and this permission notice shall be included in
// all copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
// THE SOFTWARE.
//

using MimeKit;

namespace UnitTests {
	[TestFixture]
	public class MessagePartTests
	{
		[Test]
		public void TestPrepare ()
		{
			using (var content = new MemoryStream (new byte[64], false)) {
				var part = new MimePart ("application/octet-stream") {
					Content = new MimeContent (content)
				};
				var message = new MimeMessage () {
					Body = part
				};
				var rfc822 = new MessagePart () {
					Message = message
				};

				var encoding = part.GetBestEncoding (EncodingConstraint.SevenBit);

				Assert.That (encoding, Is.EqualTo (ContentEncoding.Base64), "GetBestEncoding");

				rfc822.Prepare (EncodingConstraint.SevenBit);

				Assert.That (part.ContentTransferEncoding, Is.EqualTo (ContentEncoding.Base64), "Prepare #1");

				// now make sure that calling Prepare() again doesn't change anything

				rfc822.Prepare (EncodingConstraint.SevenBit);

				Assert.That (part.ContentTransferEncoding, Is.EqualTo (ContentEncoding.Base64), "Prepare #2");

				part.ContentTransferEncoding = ContentEncoding.Binary;
				rfc822.Prepare (EncodingConstraint.None);

				Assert.That (part.ContentTransferEncoding, Is.EqualTo (ContentEncoding.Binary), "Prepare #3");

				rfc822.Prepare (EncodingConstraint.SevenBit);

				Assert.That (part.ContentTransferEncoding, Is.EqualTo (ContentEncoding.Base64), "Prepare #4");
			}
		}
	}
}
